3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A {}; class B{}; $a = new A(); $b = new B(); $clo = function () { return 0; } $c = $a <=> $clo; echo "$c\n";
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.29, 5.6.7 - 5.6.13
Parse error: syntax error, unexpected '$c' (T_VARIABLE) in /in/7EtMF on line 9
Process exited with code 255.
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184.66 ms | 1400 KiB | 63 Q